I was earlier today reviewing some logs from one of my Nginx instances and found the following entry:<p>```
401 GET / Expanse, a Palo Alto Networks company, searches across the global IPv4 space multiple times per day to identify customers&#39; presences on the Internet. If you would like to be excluded from our scans, please send IP addresses/domains to: scaninfo@paloaltonetworks.com
```<p>I think it is just genius. It is a demonstration of effective marketing and knowing where your audience is.